Synaptics Touchpad "loosing sync" on HP laptop

[Milan Kragujevic]

I have a problem with the touchpad on HP 15-db1041nm (AMD Ryzen 5 3500U). The touchpad freezes for a few seconds then resumes working.

There are also freezes when typing where letters repeat, so instead of the letter r i get rrrrrrrrrrrrrrrrrrrrrrrrr.
This may be a different and unrelated bug which I will open, but I'm mentioning as the built-in keyboard could be attached to the same bus?

This is similar to bug #1803171, but on HP. I was instructed to report a new bug.

Attached is dmesg | grep psmouse showing the sync problems that appear.

Description: Ubuntu 19.10
Release: 19.10
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 19.10
InstallationDate: Installed on 2019-10-28 (30 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Package: linux (not installed)
Tags: eoan
Uname: Linux 5.4.0-050400-generic x86_64
UnreportableReason: The running kernel is not an Ubuntu kernel
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin lxd plugdev sambashare sudo video
_MarkForUpload: True
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: milan 951 F.... pulseaudio
 /dev/snd/controlC0: milan 951 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 19.10
InstallationDate: Installed on 2019-10-28 (30 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
IwConfig:
 lo no wireless extensions.

 eno1 no wireless extensions.
MachineType: HP HP Laptop 15-db1xxx
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-23-generic root=UUID=c6d5dded-989d-4d10-a52c-4e53aaaba9d2 ro mitigations=off quiet splash mitigations=off vt.handoff=7
ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7
RelatedPackageVersions:
 linux-restricted-modules-5.3.0-23-generic N/A
 linux-backports-modules-5.3.0-23-generic N/A
 linux-firmware 1.183.2
RfKill:

Tags: eoan
Uname: Linux 5.3.0-23-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin lxd plugdev sambashare sudo video
_MarkForUpload: True
dmi.bios.date: 06/27/2019
dmi.bios.vendor: Insyde
dmi.bios.version: F.12
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 85EA
dmi.board.vendor: HP
dmi.board.version: 51.16
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.12:bd06/27/2019:svnHP:pnHPLaptop15-db1xxx:pvrType1ProductConfigId:rvnHP:rn85EA:rvr51.16:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Notebook
dmi.product.name: HP Laptop 15-db1xxx
dmi.product.sku: 6VK24EA#BED
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1854329

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

apport information

[Milan Kragujevic (milankragujevic)]

Correction: I have booted using Ubuntu kernel and attached new apport log info.

Linux version 5.3.0-23-generic (buildd@lgw01-amd64-002) (gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2)) #25-Ubuntu SMP Tue Nov 12 09:22:33 UTC 2019

[Kai-Heng Feng (kaihengfeng)]

Does kernel parameter "psmouse.elantech_smbus=1" help?

[Milan Kragujevic (milankragujevic)]

No, it does not help.

[Kai-Heng Feng (kaihengfeng)]

Can you please attach dmesg? Thanks.

[Milan Kragujevic (milankragujevic)]

I have attached dmesg | grep psmouse before, this is full dmesg. Currently my laptop's log is being spammed by Realtek WiFi problems, so it's pretty short and includes only a few psmouse parts.

[Kai-Heng Feng (kaihengfeng)]

Maybe unload the wireless driver before collecting the log...